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在采集水域中出现,形成和处理N-尼托胺风险的影响

Mingizem Gashaw Seid¹, Aseom Son¹, Wondesen Workneh Ejerssa²

¹Center for Water Cycle Research, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea.

Journal of hazardous materials

|December 12, 2025

概括

采集的水源由于致癌性N-Nitrosamines造成的健康风险. 有效的UV/HOCl预处理显著减少了N-Nitrosamine的形成,确保了更安全的水再利用.

科学领域:

环境化学环境化学
水的质量水的质量
公共卫生公共卫生

背景情况:

淡水的稀缺性推动了对替代水源的兴趣,例如收集的雨水和雨水.
这些替代来源可能会被污染,导致致癌性N-Nitrosamines的形成.
氨酸对公共卫生而言是一个重大问题,特别是在经过处理的水中.

研究的目的:

在采集的水中系统评估9种N-胺的发生和形成潜力 (FPs).
评估与处理过的采集水中的N-尼托胺存在相关的健康风险.
为了比较各种预处理策略的有效性,以减轻N-Nitrosamine的形成.

主要方法:

在采集的雨水和雨水样本中分析了9种N-胺.
在化过程中评估N-尼托拉胺的形成.
相关性分析将N-Nitrosamine-FPs与水质参数 (金属,化物,二次胺,溶解有机) 联系起来.
基于估计的N-Nitrosamine度评估终身癌症风险.
测试预处理方法的有效性,包括沙子过,Mn,VII,UV/NH2Cl,UV/HOCl,UV/H2O2,Fe,VI和粉状活性炭.

主要成果:

在化过程中连续检测到或形成了五种N-尼胺.
风暴水显示出显著的时空变化,第一次冲洗事件增加了N-Nitrosamine水平.
N-Nitrosamine-FPs受金属,化物,二次胺和水友性溶解有机的影响.
据估计,化采集水的终身癌症风险明显超过了USEPA的可忽略的风险水平.
紫外线/HOCl预处理实现了高达90%的N-Nitrosamines降低,优于其他测试方法.

结论:

采集的水域由于N-尼托胺的污染和形成,存在重大风险.
有效的预处理,特别是UV/HOCl,对于减轻这些风险至关重要.
综合处理和消毒策略是必要的,以确保安全的水收集和再利用.

关键词:

胺化是一种化.消毒副产品消毒的副产品收获的水收获的水 N-尼托胺是一种N-Nitrosamine.预处理策略预处理策略

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